If you say '' My sister's bedroom '' then yes.
The word sisters is a common plural noun. It needs no apostrophe.I loved my sisters.When sisters have possessions or belongings, it needs an apostrophe.I loved my sisters' letters and cards.My sisters' husbands were teachers.
My sisters' cat is brown and orange.putting an apostrophe after the S makes the word sisters possessive.
If it's sister's, it only applys to one person eg-her sister's comingif it has an apostrophe after the s(sisters') it means that it applies to more than one thing or object eg- the horses' tails were all long (talking about more then one horse)
For all plural nouns ending in "s", place the apostrophe at the end of the word but do not add another "s".So, for example, for "sisters", you would write:My sisters' house is enormous.meaningThe house belonging to my sisters is enormous.
la chambre de ma soeur
The possessive form of a plural noun that ends with an s is indicated by adding an apostrophe (') only after the existing s.Examples:The sisters' names are Hope and Faith.You select the ripe ones by the berries'color.Some people prefer to use only an apostrophe (') to indicate possession for singular nouns that already end with an s, instead of adding an apostrophe s ('s). Both forms are accepted.Examples:Put the mail on the boss' desk. (Or, Put the mail on the boss's desk.)Thomas' bicycle is new. (Or, Thomas's bicycle is new.)
Parents (no apostrophe) is plural.Parent's (apostrophe s) is singular possessive.Parents' (s apostrophe) is plural possessive.
The apostrophe key can typically be found on the keyboard to the right of the semicolon (;) key, next to the Enter key. To type an apostrophe followed by "s" (apostrophe's), simply press the apostrophe key followed by the letter "s" on your keyboard.
It should be: during your sister's passing
In my bedroom No
Sisters-in-law is a plural noun referring to more than one sister-in-law.The possessive form of this plural noun is sisters-in-law's.
If the word ends in apostrophe s or ends in s apostrophe, then there is NO space before or after the apostrophe, but always a space before the next word.